Android : How do I find/create missing ListView with id - R.id.list? [android]

My android app does not work, I traced the bug and found it is this error:

java.lang.RuntimeException: Unable to start activity 
ComponentInfo{com.example.twittersearches_erjan/com.example.twittersearches_erjan.MainActivity}: 
java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'

How do I find R.id.list and remove this bug?